Random Object Generation

Unity Engine
1

Hi all, I’ve done some simple object generation script, how can I randomize objects per instatiation? not just instatiate all objects from first class list then from second and so on?

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Test : MonoBehaviour {
	
	
	public List <Obstacles> obs = new List<Obstacles>();
	public Vector3 StartPos = Vector3.zero;
	private Vector3 nextPos;
	
	void Start () 
	{
		LoadObstacles();
	}
	
	void LoadObstacles()
	{
		nextPos = Vector3.zero;
		foreach (Obstacles o in obs)
		{
			for(int x = 0; x < o.qty; x++)
			{
				nextPos.y =  StartPos.y + Random.Range(o.Positions.min.y, o.Positions.max.y);
				Instantiate (o.Prefab, StartPos + nextPos, Quaternion.identity);
				nextPos.x += Random.Range(o.Positions.min.x, o.Positions.max.x);
			}
		}
	}
}

[System.Serializable]
public class Obstacles
{
	public Transform Prefab;
	public int qty;
	public pos Positions;
}

[System.Serializable]
public class pos
{
	public Vector2 max; 
	public Vector2 min;
}
2

Maybe this is what you were looking for:

     for(int x = 0; x < 10; x++) // or how many you want to be instantiated
     {
          nextPos.y =  StartPos.y + Random.Range(o.Positions.min.y, o.Positions.max.y);
          int randIndex = Random.Range(0, obs.Count);
          Instantiate(obs[randIndex].Prefab, StartPos + nextPos, Quaternion.identity);
          nextPos.x += Random.Range(o.Positions.min.x, o.Positions.max.x);
     }
}
3

Yeh, this way works, but it also shuffle position values, so wont work as I need…
Looks like adding the same index to it do the job, let me make some tests.

4

Yeh, looks like I’ve asked wrong question, random index was the first thing I have done, but more complex thing for me is to reset/reload Instatiated objects(Randomize them again). I’ve create a List of Transforms in Obstacles Class called “preloadedObstacles”

void LoadObstacles()
	{
		nextPos = Vector3.zero;
		foreach (Obstacles o in obs)
		{
			for(int x = 0; x < o.qty; x++)
			{
				int randIndex = Random.Range(0, obs.Count);
				nextPos.y =  StartPos.y + Random.Range(obs[randIndex].Positions.min.y, obs[randIndex].Positions.max.y);
				obs[randIndex].preloadedObstacles.Add ((Transform) Instantiate (obs[randIndex].Prefab, StartPos + nextPos, Quaternion.identity));
				nextPos.x += Random.Range(obs[randIndex].Positions.min.x, obs[randIndex].Positions.max.x);
			}
		}
	}
	
	void Reset()
	{
		nextPos = Vector3.zero;
		foreach (Obstacles o in obs)
		{
			for(int x = 0; x < o.preloadedObstacles.Count; x++)
			{
				nextPos.y =  StartPos.y + Random.Range(o.Positions.min.y, o.Positions.max.y);
				o.preloadedObstacles[x].position = StartPos + nextPos;
				nextPos.x += Random.Range(o.Positions.min.x, o.Positions.max.x);
			}
		}
	}

How to? the same way with random index I got null refference…

5

Also there is a bug with objects amount, if for example there is 5 “qty” it means there should be 5 objects of each… but amount also became random. Apparently, this approach completely wrong, any ideas ???

6

Anyone?

7

What do you mean by reset/reload instantiated objects again if you want them to be randomized again? I think i do not quite understand what you want to achieve. Can you describe an example?

8

Exactly